diff --git a/package-lock.json b/package-lock.json
index e401f2e..7dbf895 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
         "body-parser": "^1.20.2",
         "cors": "^2.8.5",
         "express": "^4.18.2",
-        "langchain": "^0.0.68",
+        "langchain": "^0.0.81",
         "source-map-support": "^0.5.21"
       },
       "devDependencies": {
@@ -1175,11 +1175,6 @@
         "node": ">=14.0.0"
       }
     },
-    "node_modules/@dqbd/tiktoken": {
-      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/@dqbd/tiktoken/-/tiktoken-1.0.7.tgz",
-      "integrity": "sha512-bhR5k5W+8GLzysjk8zTMVygQZsgvf7W1F0IlL4ZQ5ugjo5rCyiwGM5d8DYriXspytfu98tv59niang3/T+FoDw=="
-    },
     "node_modules/@esbuild/android-arm": {
       "version": "0.17.18",
       "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.17.18.tgz",
@@ -3360,7 +3355,6 @@
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
       "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
-      "dev": true,
       "funding": [
         {
           "type": "github",
@@ -3641,11 +3635,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/browser-or-node": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/browser-or-node/-/browser-or-node-2.1.1.tgz",
-      "integrity": "sha512-8CVjaLJGuSKMVTxJ2DpBl5XnlNDiT4cQFeuCJJrvJmts9YrTZDizTX7PjC2s6W4x+MBGZeEY6dGMrF04/6Hgqg=="
-    },
     "node_modules/buffer": {
       "version": "4.9.2",
       "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.2.tgz",
@@ -6682,7 +6671,7 @@
       "version": "5.2.4",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.2.4.tgz",
       "integrity": "sha512-MAb38BcSbH0eHNBxn7ql2NH/kX33OkB3lZ1BNdh7ENeRChHTYsTvWrMubiIAMNS2llXEEgZ1MUOBtXChP3kaFQ==",
-      "dev": true,
+      "devOptional": true,
       "engines": {
         "node": ">= 4"
       }
@@ -7227,6 +7216,14 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/js-tiktoken": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/js-tiktoken/-/js-tiktoken-1.0.6.tgz",
+      "integrity": "sha512-lxHntEupgjWvSh37WxpAW4XN6UBXBtFJOpZZq5HN5oNjDfN7L/iJhHOKjyL/DFtuYXUwn5jfTciLtOWpgQmHjQ==",
+      "dependencies": {
+        "base64-js": "^1.5.1"
+      }
+    },
     "node_modules/js-yaml": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
@@ -7491,17 +7488,16 @@
       }
     },
     "node_modules/langchain": {
-      "version": "0.0.68",
-      "resolved": "https://registry.npmjs.org/langchain/-/langchain-0.0.68.tgz",
-      "integrity": "sha512-lp7BshAa2BZfayEi/HSZr7d/D3tAM2FYdLgcnbSqM2/NB565435C+mnY5QoKMVYCFukgD4/28AbPvT7xSSfgtw==",
+      "version": "0.0.81",
+      "resolved": "https://registry.npmjs.org/langchain/-/langchain-0.0.81.tgz",
+      "integrity": "sha512-G4UOijTSA4Q8Anqn2Hdq3P4c2w2zJryAffh90kS5x2Lv+MugM/vPPcZXy9y3kZIET7Hdj/KTpkFOCofejpvWHA==",
       "dependencies": {
         "@anthropic-ai/sdk": "^0.4.3",
-        "@dqbd/tiktoken": "^1.0.7",
         "ansi-styles": "^5.0.0",
         "binary-extensions": "^2.2.0",
-        "browser-or-node": "^2.1.1",
         "expr-eval": "^2.0.2",
         "flat": "^5.0.2",
+        "js-tiktoken": "^1.0.6",
         "jsonpointer": "^5.0.1",
         "ml-distance": "^4.0.0",
         "object-hash": "^3.0.0",
@@ -7517,8 +7513,11 @@
         "node": ">=18"
       },
       "peerDependencies": {
+        "@aws-sdk/client-dynamodb": "^3.310.0",
         "@aws-sdk/client-lambda": "^3.310.0",
         "@aws-sdk/client-s3": "^3.310.0",
+        "@aws-sdk/client-sagemaker-runtime": "^3.310.0",
+        "@clickhouse/client": "^0.0.14",
         "@getmetal/metal-sdk": "*",
         "@huggingface/inference": "^1.5.1",
         "@opensearch-project/opensearch": "*",
@@ -7527,18 +7526,24 @@
         "@tensorflow-models/universal-sentence-encoder": "*",
         "@tensorflow/tfjs-converter": "*",
         "@tensorflow/tfjs-core": "*",
-        "@zilliz/milvus2-sdk-node": "^2.2.0",
+        "@zilliz/milvus2-sdk-node": ">=2.2.7",
+        "apify-client": "^2.7.1",
         "axios": "*",
         "cheerio": "^1.0.0-rc.12",
-        "chromadb": "^1.4.0",
+        "chromadb": "^1.4.2",
         "cohere-ai": "^5.0.2",
         "d3-dsv": "^2.0.0",
         "epub2": "^3.0.1",
+        "faiss-node": "^0.1.1",
+        "google-auth-library": "^8.8.0",
         "hnswlib-node": "^1.4.2",
         "html-to-text": "^9.0.5",
+        "ignore": "^5.2.0",
         "mammoth": "*",
+        "meriyah": "*",
         "mongodb": "^5.2.0",
         "pdf-parse": "1.1.1",
+        "pickleparser": "^0.1.0",
         "playwright": "^1.32.1",
         "puppeteer": "^19.7.2",
         "redis": "^4.6.4",
@@ -7548,12 +7553,21 @@
         "weaviate-ts-client": "^1.0.0"
       },
       "peerDependenciesMeta": {
+        "@aws-sdk/client-dynamodb": {
+          "optional": true
+        },
         "@aws-sdk/client-lambda": {
           "optional": true
         },
         "@aws-sdk/client-s3": {
           "optional": true
         },
+        "@aws-sdk/client-sagemaker-runtime": {
+          "optional": true
+        },
+        "@clickhouse/client": {
+          "optional": true
+        },
         "@getmetal/metal-sdk": {
           "optional": true
         },
@@ -7581,6 +7595,9 @@
         "@zilliz/milvus2-sdk-node": {
           "optional": true
         },
+        "apify-client": {
+          "optional": true
+        },
         "axios": {
           "optional": true
         },
@@ -7599,21 +7616,36 @@
         "epub2": {
           "optional": true
         },
+        "faiss-node": {
+          "optional": true
+        },
+        "google-auth-library": {
+          "optional": true
+        },
         "hnswlib-node": {
           "optional": true
         },
         "html-to-text": {
           "optional": true
         },
+        "ignore": {
+          "optional": true
+        },
         "mammoth": {
           "optional": true
         },
+        "meriyah": {
+          "optional": true
+        },
         "mongodb": {
           "optional": true
         },
         "pdf-parse": {
           "optional": true
         },
+        "pickleparser": {
+          "optional": true
+        },
         "playwright": {
           "optional": true
         },
diff --git a/package.json b/package.json
index 9d23bc9..9a87f31 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "body-parser": "^1.20.2",
     "cors": "^2.8.5",
     "express": "^4.18.2",
-    "langchain": "^0.0.68",
+    "langchain": "^0.0.81",
     "source-map-support": "^0.5.21"
   },
   "devDependencies": {